Search engine optimization (SEO) is the process of affecting the online visibility of a website or a web page in a web search engine's unpaid results—often referred to as "natural", "organic", or "earned" results. In general, the earlier (or higher ranked on the search results page), and more frequently a website appears in the search results list, the more visitors it will receive from the search engine's users; these visitors can then be converted into customers.[1] SEO may target different kinds of search, including image search, video search, academic search,[2] news search, and industry-specific vertical search engines. SEO differs from local search engine optimization in that the latter is focused on optimizing a business' online presence so that its web pages will be displayed by search engines when a user enters a local search for its products or services. The former instead is more focused on national or international searches.

The study objectives of this report are: To analyze global Search Engine Optimization Services status, future forecast, growth opportunity, key market and key players. To present the Search Engine Optimization Services development in United States, Europe and China. To strategically profile the key players and comprehensively analyze their development plan and strategies. To define, describe and forecast the market by product type, market and key regions.